Deciduous is an adjective with two related but distinctclearly separate and different from one another meanings. It most often describes trees and shrubssmall woody plants with many stems near the ground that lose their leaves at a certain time each year. It can also describe teeth, antlers, or similar parts that are shedlose or cast off naturally after a period of growth.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /dɪˈsɪdʒuəs/
Easy pronunciation: dih-SID-joo-uhs (approximate spelling).
Stress: Primary stress is on the second syllable: SID.
Use this plant and shrub sense: losing leaves seasonally.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Deciduous Meaning
losing leaves seasonally
Part of speech: adjective
Definition: (of plants and shrubs) shedding foliage at the end of the growing season
Example: Maples are deciduous trees, so they lose their leaves in autumn.
Synonyms for this meaning:
- leaf-shedding — A direct descriptive substitute for the plant sense.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Other Meanings of Deciduous
Meaning 2
falling off after a growth stage
Part of speech: adjective
Definition: (of teeth, antlers, etc.) being shed at the end of a period of growth
Example: Children have deciduous teeth that are replaced by permanent teeth.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Deciduous Synonyms
Similar Meaning
- leaf-shedding
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Do not use deciduous to mean evergreen; it means the opposite in the plant sense.
- Do not mix the plant meaning with the teeth meaning: they are related in form, but they refer to different things.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does deciduous mean?
Deciduous usually describes a tree or shrub that loses its leaves each year. It can also describe teeth or antlers that are shed after a period of growth.
What is a deciduous tree?
A deciduous tree is one that sheds its leaves seasonally, usually in autumn or during a dry season.
What are deciduous teeth?
Deciduous teeth are the first set of teeth in children. They are later shed and replaced by permanent teeth.
What is a synonym for deciduous?
For the plant sense, a good synonym is leaf-shedding. The teeth sense does not have a strong everyday synonym in the supplied data.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.